# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import sympy

# TODO: inrerite sympy.Function

Parameter = sympy.Function

# class Parameter(sympy.Function):
#     def __init__(self, args):
#         sympy.Function(name)


def is_parameter(param):
    return isinstance(param, sympy.Function)
    # return param.is_Function


# if __name__ == "__main__":
#     print(is_parameter(sympy.Symbol('x')))
#     print(is_parameter(1.0))
#     print(is_parameter(Parameter("nu")))
